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1da177e4 LT |
1 | /* |
2 | zr36120.c - Zoran 36120/36125 based framegrabbers | |
3 | ||
4 | Copyright (C) 1998-1999 Pauline Middelink <middelin@polyware.nl> | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/fs.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/major.h> | |
28 | #include <linux/slab.h> | |
29 | #include <linux/vmalloc.h> | |
30 | #include <linux/mm.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/signal.h> | |
33 | #include <linux/wait.h> | |
34 | #include <asm/io.h> | |
35 | #include <asm/pgtable.h> | |
36 | #include <asm/page.h> | |
37 | #include <linux/sched.h> | |
38 | #include <linux/video_decoder.h> | |
39 | ||
40 | #include <asm/uaccess.h> | |
41 | ||
42 | #include "tuner.h" | |
43 | #include "zr36120.h" | |
44 | #include "zr36120_mem.h" | |
45 | ||
46 | /* mark an required function argument unused - lintism */ | |
47 | #define UNUSED(x) (void)(x) | |
48 | ||
49 | /* sensible default */ | |
50 | #ifndef CARDTYPE | |
51 | #define CARDTYPE 0 | |
52 | #endif | |
53 | ||
54 | /* Anybody who uses more than four? */ | |
55 | #define ZORAN_MAX 4 | |
56 | ||
57 | static unsigned int triton1=0; /* triton1 chipset? */ | |
58 | static unsigned int cardtype[ZORAN_MAX]={ [ 0 ... ZORAN_MAX-1 ] = CARDTYPE }; | |
59 | static int video_nr = -1; | |
60 | static int vbi_nr = -1; | |
61 | ||
62 | static struct pci_device_id zr36120_pci_tbl[] = { | |
63 | { PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120, | |
64 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
65 | { 0 } | |
66 | }; | |
67 | MODULE_DEVICE_TABLE(pci, zr36120_pci_tbl); | |
68 | ||
69 | MODULE_AUTHOR("Pauline Middelink <middelin@polyware.nl>"); | |
70 | MODULE_DESCRIPTION("Zoran ZR36120 based framegrabber"); | |
71 | MODULE_LICENSE("GPL"); | |
72 | ||
8d3b33f6 RR |
73 | module_param(triton1, uint, 0); |
74 | module_param_array(cardtype, uint, NULL, 0); | |
75 | module_param(video_nr, int, 0); | |
76 | module_param(vbi_nr, int, 0); | |
1da177e4 LT |
77 | |
78 | static int zoran_cards; | |
79 | static struct zoran zorans[ZORAN_MAX]; | |
80 | ||
81 | /* | |
82 | * the meaning of each element can be found in zr36120.h | |
83 | * Determining the value of gpdir/gpval can be tricky. The | |
84 | * best way is to run the card under the original software | |
85 | * and read the values from the general purpose registers | |
86 | * 0x28 and 0x2C. How you do that is left as an exercise | |
87 | * to the impatient reader :) | |
88 | */ | |
89 | #define T 1 /* to separate the bools from the ints */ | |
90 | #define F 0 | |
91 | static struct tvcard tvcards[] = { | |
92 | /* reported working by <middelin@polyware.nl> */ | |
93 | /*0*/ { "Trust Victor II", | |
94 | 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } }, | |
95 | /* reported working by <Michael.Paxton@aihw.gov.au> */ | |
96 | /*1*/ { "Aitech WaveWatcher TV-PCI", | |
97 | 3, 0, T, F, T, T, 0x7F, 0x80, { 1, TUNER(3), SVHS(6) }, { 0 } }, | |
98 | /* reported working by ? */ | |
99 | /*2*/ { "Genius Video Wonder PCI Video Capture Card", | |
100 | 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } }, | |
101 | /* reported working by <Pascal.Gabriel@wanadoo.fr> */ | |
102 | /*3*/ { "Guillemot Maxi-TV PCI", | |
103 | 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } }, | |
104 | /* reported working by "Craig Whitmore <lennon@igrin.co.nz> */ | |
105 | /*4*/ { "Quadrant Buster", | |
106 | 3, 3, T, F, T, T, 0x7F, 0x80, { SVHS(1), TUNER(2), 3 }, { 1, 2, 3 } }, | |
107 | /* a debug entry which has all inputs mapped */ | |
108 | /*5*/ { "ZR36120 based framegrabber (all inputs enabled)", | |
109 | 6, 0, T, T, T, T, 0x7F, 0x80, { 1, 2, 3, 4, 5, 6 }, { 0 } } | |
110 | }; | |
111 | #undef T | |
112 | #undef F | |
113 | #define NRTVCARDS (sizeof(tvcards)/sizeof(tvcards[0])) | |
114 | ||
115 | #ifdef __sparc__ | |
116 | #define ENDIANESS 0 | |
117 | #else | |
118 | #define ENDIANESS ZORAN_VFEC_LE | |
119 | #endif | |
120 | ||
121 | static struct { const char name[8]; uint mode; uint bpp; } palette2fmt[] = { | |
122 | /* n/a */ { "n/a", 0, 0 }, | |
123 | /* GREY */ { "GRAY", 0, 0 }, | |
124 | /* HI240 */ { "HI240", 0, 0 }, | |
125 | /* RGB565 */ { "RGB565", ZORAN_VFEC_RGB_RGB565|ENDIANESS, 2 }, | |
126 | /* RGB24 */ { "RGB24", ZORAN_VFEC_RGB_RGB888|ENDIANESS|ZORAN_VFEC_PACK24, 3 }, | |
127 | /* RGB32 */ { "RGB32", ZORAN_VFEC_RGB_RGB888|ENDIANESS, 4 }, | |
128 | /* RGB555 */ { "RGB555", ZORAN_VFEC_RGB_RGB555|ENDIANESS, 2 }, | |
129 | /* YUV422 */ { "YUV422", ZORAN_VFEC_RGB_YUV422|ENDIANESS, 2 }, | |
130 | /* YUYV */ { "YUYV", 0, 0 }, | |
131 | /* UYVY */ { "UYVY", 0, 0 }, | |
132 | /* YUV420 */ { "YUV420", 0, 0 }, | |
133 | /* YUV411 */ { "YUV411", 0, 0 }, | |
134 | /* RAW */ { "RAW", 0, 0 }, | |
135 | /* YUV422P */ { "YUV422P", 0, 0 }, | |
136 | /* YUV411P */ { "YUV411P", 0, 0 }}; | |
137 | #define NRPALETTES (sizeof(palette2fmt)/sizeof(palette2fmt[0])) | |
138 | #undef ENDIANESS | |
139 | ||
140 | /* ----------------------------------------------------------------------- */ | |
141 | /* ZORAN chipset detector */ | |
142 | /* shamelessly stolen from bttv.c */ | |
143 | /* Reason for beeing here: we need to detect if we are running on a */ | |
144 | /* Triton based chipset, and if so, enable a certain bit */ | |
145 | /* ----------------------------------------------------------------------- */ | |
146 | static | |
147 | void __init handle_chipset(void) | |
148 | { | |
149 | /* Just in case some nut set this to something dangerous */ | |
150 | if (triton1) | |
151 | triton1 = ZORAN_VDC_TRICOM; | |
152 | ||
153 | if (pci_pci_problems & PCIPCI_TRITON) { | |
154 | printk(KERN_INFO "zoran: Host bridge 82437FX Triton PIIX\n"); | |
155 | triton1 = ZORAN_VDC_TRICOM; | |
156 | } | |
157 | } | |
158 | ||
159 | /* ----------------------------------------------------------------------- */ | |
160 | /* ZORAN functions */ | |
161 | /* ----------------------------------------------------------------------- */ | |
162 | ||
163 | static void zoran_set_geo(struct zoran* ztv, struct vidinfo* i); | |
164 | ||
165 | #if 0 /* unused */ | |
166 | static | |
167 | void zoran_dump(struct zoran *ztv) | |
168 | { | |
169 | char str[256]; | |
170 | char *p=str; /* shut up, gcc! */ | |
171 | int i; | |
172 | ||
173 | for (i=0; i<0x60; i+=4) { | |
174 | if ((i % 16) == 0) { | |
175 | if (i) printk("%s\n",str); | |
176 | p = str; | |
177 | p+= sprintf(str, KERN_DEBUG " %04x: ",i); | |
178 | } | |
179 | p += sprintf(p, "%08x ",zrread(i)); | |
180 | } | |
181 | } | |
182 | #endif /* unused */ | |
183 | ||
184 | static | |
185 | void reap_states(struct zoran* ztv) | |
186 | { | |
187 | /* count frames */ | |
188 | ztv->fieldnr++; | |
189 | ||
190 | /* | |
191 | * Are we busy at all? | |
192 | * This depends on if there is a workqueue AND the | |
193 | * videotransfer is enabled on the chip... | |
194 | */ | |
195 | if (ztv->workqueue && (zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN)) | |
196 | { | |
197 | struct vidinfo* newitem; | |
198 | ||
199 | /* did we get a complete frame? */ | |
200 | if (zrread(ZORAN_VSTR) & ZORAN_VSTR_GRAB) | |
201 | return; | |
202 | ||
203 | DEBUG(printk(CARD_DEBUG "completed %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue)); | |
204 | ||
205 | /* we are done with this buffer, tell everyone */ | |
206 | ztv->workqueue->status = FBUFFER_DONE; | |
207 | ztv->workqueue->fieldnr = ztv->fieldnr; | |
208 | /* not good, here for BTTV_FIELDNR reasons */ | |
209 | ztv->lastfieldnr = ztv->fieldnr; | |
210 | ||
211 | switch (ztv->workqueue->kindof) { | |
212 | case FBUFFER_GRAB: | |
213 | wake_up_interruptible(&ztv->grabq); | |
214 | break; | |
215 | case FBUFFER_VBI: | |
216 | wake_up_interruptible(&ztv->vbiq); | |
217 | break; | |
218 | default: | |
219 | printk(CARD_INFO "somebody killed the workqueue (kindof=%d)!\n",CARD,ztv->workqueue->kindof); | |
220 | } | |
221 | ||
222 | /* item completed, skip to next item in queue */ | |
223 | write_lock(&ztv->lock); | |
224 | newitem = ztv->workqueue->next; | |
225 | ztv->workqueue->next = 0; /* mark completed */ | |
226 | ztv->workqueue = newitem; | |
227 | write_unlock(&ztv->lock); | |
228 | } | |
229 | ||
230 | /* | |
231 | * ok, so it seems we have nothing in progress right now. | |
232 | * Lets see if we can find some work. | |
233 | */ | |
234 | if (ztv->workqueue) | |
235 | { | |
236 | struct vidinfo* newitem; | |
237 | again: | |
238 | ||
239 | DEBUG(printk(CARD_DEBUG "starting %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue)); | |
240 | ||
241 | /* loadup the frame settings */ | |
242 | read_lock(&ztv->lock); | |
243 | zoran_set_geo(ztv,ztv->workqueue); | |
244 | read_unlock(&ztv->lock); | |
245 | ||
246 | switch (ztv->workqueue->kindof) { | |
247 | case FBUFFER_GRAB: | |
248 | case FBUFFER_VBI: | |
249 | zrand(~ZORAN_OCR_OVLEN, ZORAN_OCR); | |
250 | zror(ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR); | |
251 | zror(ZORAN_VDC_VIDEN,ZORAN_VDC); | |
252 | ||
253 | /* start single-shot grab */ | |
254 | zror(ZORAN_VSTR_GRAB, ZORAN_VSTR); | |
255 | break; | |
256 | default: | |
257 | printk(CARD_INFO "what is this doing on the queue? (kindof=%d)\n",CARD,ztv->workqueue->kindof); | |
258 | write_lock(&ztv->lock); | |
259 | newitem = ztv->workqueue->next; | |
260 | ztv->workqueue->next = 0; | |
261 | ztv->workqueue = newitem; | |
262 | write_unlock(&ztv->lock); | |
263 | if (newitem) | |
264 | goto again; /* yeah, sure.. */ | |
265 | } | |
266 | /* bye for now */ | |
267 | return; | |
268 | } | |
269 | DEBUG(printk(CARD_DEBUG "nothing in queue\n",CARD)); | |
270 | ||
271 | /* | |
272 | * What? Even the workqueue is empty? Am i really here | |
273 | * for nothing? Did i come all that way to... do nothing? | |
274 | */ | |
275 | ||
276 | /* do we need to overlay? */ | |
277 | if (test_bit(STATE_OVERLAY, &ztv->state)) | |
278 | { | |
279 | /* are we already overlaying? */ | |
280 | if (!(zrread(ZORAN_OCR) & ZORAN_OCR_OVLEN) || | |
281 | !(zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN)) | |
282 | { | |
283 | DEBUG(printk(CARD_DEBUG "starting overlay\n",CARD)); | |
284 | ||
285 | read_lock(&ztv->lock); | |
286 | zoran_set_geo(ztv,&ztv->overinfo); | |
287 | read_unlock(&ztv->lock); | |
288 | ||
289 | zror(ZORAN_OCR_OVLEN, ZORAN_OCR); | |
290 | zrand(~ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR); | |
291 | zror(ZORAN_VDC_VIDEN,ZORAN_VDC); | |
292 | } | |
293 | ||
294 | /* | |
295 | * leave overlaying on, but turn interrupts off. | |
296 | */ | |
297 | zrand(~ZORAN_ICR_EN,ZORAN_ICR); | |
298 | return; | |
299 | } | |
300 | ||
301 | /* do we have any VBI idle time processing? */ | |
302 | if (test_bit(STATE_VBI, &ztv->state)) | |
303 | { | |
304 | struct vidinfo* item; | |
305 | struct vidinfo* lastitem; | |
306 | ||
307 | /* protect the workqueue */ | |
308 | write_lock(&ztv->lock); | |
309 | lastitem = ztv->workqueue; | |
310 | if (lastitem) | |
311 | while (lastitem->next) lastitem = lastitem->next; | |
312 | for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) | |
313 | if (item->next == 0 && item->status == FBUFFER_FREE) | |
314 | { | |
315 | DEBUG(printk(CARD_DEBUG "%p added to queue\n",CARD,item)); | |
316 | item->status = FBUFFER_BUSY; | |
317 | if (!lastitem) | |
318 | ztv->workqueue = item; | |
319 | else | |
320 | lastitem->next = item; | |
321 | lastitem = item; | |
322 | } | |
323 | write_unlock(&ztv->lock); | |
324 | if (ztv->workqueue) | |
325 | goto again; /* hey, _i_ graduated :) */ | |
326 | } | |
327 | ||
328 | /* | |
329 | * Then we must be realy IDLE | |
330 | */ | |
331 | DEBUG(printk(CARD_DEBUG "turning off\n",CARD)); | |
332 | /* nothing further to do, disable DMA and further IRQs */ | |
333 | zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC); | |
334 | zrand(~ZORAN_ICR_EN,ZORAN_ICR); | |
335 | } | |
336 | ||
337 | static | |
338 | void zoran_irq(int irq, void *dev_id, struct pt_regs * regs) | |
339 | { | |
340 | u32 stat,estat; | |
341 | int count = 0; | |
342 | struct zoran *ztv = dev_id; | |
343 | ||
344 | UNUSED(irq); UNUSED(regs); | |
345 | for (;;) { | |
346 | /* get/clear interrupt status bits */ | |
347 | stat=zrread(ZORAN_ISR); | |
348 | estat=stat & zrread(ZORAN_ICR); | |
349 | if (!estat) | |
350 | return; | |
351 | zrwrite(estat,ZORAN_ISR); | |
352 | IDEBUG(printk(CARD_DEBUG "estat %08x\n",CARD,estat)); | |
353 | IDEBUG(printk(CARD_DEBUG " stat %08x\n",CARD,stat)); | |
354 | ||
355 | if (estat & ZORAN_ISR_CODE) | |
356 | { | |
357 | IDEBUG(printk(CARD_DEBUG "CodReplIRQ\n",CARD)); | |
358 | } | |
359 | if (estat & ZORAN_ISR_GIRQ0) | |
360 | { | |
361 | IDEBUG(printk(CARD_DEBUG "GIRQ0\n",CARD)); | |
362 | if (!ztv->card->usegirq1) | |
363 | reap_states(ztv); | |
364 | } | |
365 | if (estat & ZORAN_ISR_GIRQ1) | |
366 | { | |
367 | IDEBUG(printk(CARD_DEBUG "GIRQ1\n",CARD)); | |
368 | if (ztv->card->usegirq1) | |
369 | reap_states(ztv); | |
370 | } | |
371 | ||
372 | count++; | |
373 | if (count > 10) | |
374 | printk(CARD_ERR "irq loop %d (%x)\n",CARD,count,estat); | |
375 | if (count > 20) | |
376 | { | |
377 | zrwrite(0, ZORAN_ICR); | |
378 | printk(CARD_ERR "IRQ lockup, cleared int mask\n",CARD); | |
379 | } | |
380 | } | |
381 | } | |
382 | ||
383 | static | |
384 | int zoran_muxsel(struct zoran* ztv, int channel, int norm) | |
385 | { | |
386 | int rv; | |
387 | ||
388 | /* set the new video norm */ | |
389 | rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &norm); | |
390 | if (rv) | |
391 | return rv; | |
392 | ztv->norm = norm; | |
393 | ||
394 | /* map the given channel to the cards decoder's channel */ | |
395 | channel = ztv->card->video_mux[channel] & CHANNEL_MASK; | |
396 | ||
397 | /* set the new channel */ | |
398 | rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &channel); | |
399 | return rv; | |
400 | } | |
401 | ||
402 | /* Tell the interrupt handler what to to. */ | |
403 | static | |
404 | void zoran_cap(struct zoran* ztv, int on) | |
405 | { | |
406 | DEBUG(printk(CARD_DEBUG "zoran_cap(%d) state=%x\n",CARD,on,ztv->state)); | |
407 | ||
408 | if (on) { | |
409 | ztv->running = 1; | |
410 | ||
411 | /* | |
412 | * turn interrupts (back) on. The DMA will be enabled | |
413 | * inside the irq handler when it detects a restart. | |
414 | */ | |
415 | zror(ZORAN_ICR_EN,ZORAN_ICR); | |
416 | } | |
417 | else { | |
418 | /* | |
419 | * turn both interrupts and DMA off | |
420 | */ | |
421 | zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC); | |
422 | zrand(~ZORAN_ICR_EN,ZORAN_ICR); | |
423 | ||
424 | ztv->running = 0; | |
425 | } | |
426 | } | |
427 | ||
428 | static ulong dmask[] = { | |
429 | 0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFF8, | |
430 | 0xFFFFFFF0, 0xFFFFFFE0, 0xFFFFFFC0, 0xFFFFFF80, | |
431 | 0xFFFFFF00, 0xFFFFFE00, 0xFFFFFC00, 0xFFFFF800, | |
432 | 0xFFFFF000, 0xFFFFE000, 0xFFFFC000, 0xFFFF8000, | |
433 | 0xFFFF0000, 0xFFFE0000, 0xFFFC0000, 0xFFF80000, | |
434 | 0xFFF00000, 0xFFE00000, 0xFFC00000, 0xFF800000, | |
435 | 0xFF000000, 0xFE000000, 0xFC000000, 0xF8000000, | |
436 | 0xF0000000, 0xE0000000, 0xC0000000, 0x80000000 | |
437 | }; | |
438 | ||
439 | static | |
440 | void zoran_built_overlay(struct zoran* ztv, int count, struct video_clip *vcp) | |
441 | { | |
442 | ulong* mtop; | |
443 | int ystep = (ztv->vidXshift + ztv->vidWidth+31)/32; /* next DWORD */ | |
444 | int i; | |
445 | ||
446 | DEBUG(printk(KERN_DEBUG " overlay at %p, ystep=%d, clips=%d\n",ztv->overinfo.overlay,ystep,count)); | |
447 | ||
448 | for (i=0; i<count; i++) { | |
449 | struct video_clip *vp = vcp+i; | |
450 | UNUSED(vp); | |
451 | DEBUG(printk(KERN_DEBUG " %d: clip(%d,%d,%d,%d)\n", i,vp->x,vp->y,vp->width,vp->height)); | |
452 | } | |
453 | ||
454 | /* | |
455 | * activate the visible portion of the screen | |
456 | * Note we take some shortcuts here, because we | |
457 | * know the width can never be < 32. (I.e. a DWORD) | |
458 | * We also assume the overlay starts somewhere in | |
459 | * the FIRST dword. | |
460 | */ | |
461 | { | |
462 | int start = ztv->vidXshift; | |
463 | ulong firstd = dmask[start]; | |
464 | ulong lastd = ~dmask[(start + ztv->overinfo.w) & 31]; | |
465 | mtop = ztv->overinfo.overlay; | |
466 | for (i=0; i<ztv->overinfo.h; i++) { | |
467 | int w = ztv->vidWidth; | |
468 | ulong* line = mtop; | |
469 | if (start & 31) { | |
470 | *line++ = firstd; | |
471 | w -= 32-(start&31); | |
472 | } | |
473 | memset(line, ~0, w/8); | |
474 | if (w & 31) | |
475 | line[w/32] = lastd; | |
476 | mtop += ystep; | |
477 | } | |
478 | } | |
479 | ||
480 | /* process clipping regions */ | |
481 | for (i=0; i<count; i++) { | |
482 | int h; | |
483 | if (vcp->x < 0 || (uint)vcp->x > ztv->overinfo.w || | |
484 | vcp->y < 0 || vcp->y > ztv->overinfo.h || | |
485 | vcp->width < 0 || (uint)(vcp->x+vcp->width) > ztv->overinfo.w || | |
486 | vcp->height < 0 || (vcp->y+vcp->height) > ztv->overinfo.h) | |
487 | { | |
488 | DEBUG(printk(CARD_DEBUG "invalid clipzone (%d,%d,%d,%d) not in (0,0,%d,%d), adapting\n",CARD,vcp->x,vcp->y,vcp->width,vcp->height,ztv->overinfo.w,ztv->overinfo.h)); | |
489 | if (vcp->x < 0) vcp->x = 0; | |
490 | if ((uint)vcp->x > ztv->overinfo.w) vcp->x = ztv->overinfo.w; | |
491 | if (vcp->y < 0) vcp->y = 0; | |
492 | if (vcp->y > ztv->overinfo.h) vcp->y = ztv->overinfo.h; | |
493 | if (vcp->width < 0) vcp->width = 0; | |
494 | if ((uint)(vcp->x+vcp->width) > ztv->overinfo.w) vcp->width = ztv->overinfo.w - vcp->x; | |
495 | if (vcp->height < 0) vcp->height = 0; | |
496 | if (vcp->y+vcp->height > ztv->overinfo.h) vcp->height = ztv->overinfo.h - vcp->y; | |
497 | // continue; | |
498 | } | |
499 | ||
500 | mtop = &ztv->overinfo.overlay[vcp->y*ystep]; | |
501 | for (h=0; h<=vcp->height; h++) { | |
502 | int w; | |
503 | int x = ztv->vidXshift + vcp->x; | |
504 | for (w=0; w<=vcp->width; w++) { | |
505 | clear_bit(x&31, &mtop[x/32]); | |
506 | x++; | |
507 | } | |
508 | mtop += ystep; | |
509 | } | |
510 | ++vcp; | |
511 | } | |
512 | ||
513 | mtop = ztv->overinfo.overlay; | |
514 | zrwrite(virt_to_bus(mtop), ZORAN_MTOP); | |
515 | zrwrite(virt_to_bus(mtop+ystep), ZORAN_MBOT); | |
516 | zraor((ztv->vidInterlace*ystep)<<0,~ZORAN_OCR_MASKSTRIDE,ZORAN_OCR); | |
517 | } | |
518 | ||
519 | struct tvnorm | |
520 | { | |
521 | u16 Wt, Wa, Ht, Ha, HStart, VStart; | |
522 | }; | |
523 | ||
524 | static struct tvnorm tvnorms[] = { | |
525 | /* PAL-BDGHI */ | |
526 | /* { 864, 720, 625, 576, 131, 21 },*/ | |
527 | /*00*/ { 864, 768, 625, 576, 81, 17 }, | |
528 | /* NTSC */ | |
529 | /*01*/ { 858, 720, 525, 480, 121, 10 }, | |
530 | /* SECAM */ | |
531 | /*02*/ { 864, 720, 625, 576, 131, 21 }, | |
532 | /* BW50 */ | |
533 | /*03*/ { 864, 720, 625, 576, 131, 21 }, | |
534 | /* BW60 */ | |
535 | /*04*/ { 858, 720, 525, 480, 121, 10 } | |
536 | }; | |
537 | #define TVNORMS (sizeof(tvnorms)/sizeof(tvnorm)) | |
538 | ||
539 | /* | |
540 | * Program the chip for a setup as described in the vidinfo struct. | |
541 | * | |
542 | * Side-effects: calculates vidXshift, vidInterlace, | |
543 | * vidHeight, vidWidth which are used in a later stage | |
544 | * to calculate the overlay mask | |
545 | * | |
546 | * This is an internal function, as such it does not check the | |
547 | * validity of the struct members... Spectaculair crashes will | |
548 | * follow /very/ quick when you're wrong and the chip right :) | |
549 | */ | |
550 | static | |
551 | void zoran_set_geo(struct zoran* ztv, struct vidinfo* i) | |
552 | { | |
553 | ulong top, bot; | |
554 | int stride; | |
555 | int winWidth, winHeight; | |
556 | int maxWidth, maxHeight, maxXOffset, maxYOffset; | |
557 | long vfec; | |
558 | ||
559 | DEBUG(printk(CARD_DEBUG "set_geo(rect=(%d,%d,%d,%d), norm=%d, format=%d, bpp=%d, bpl=%d, busadr=%lx, overlay=%p)\n",CARD,i->x,i->y,i->w,i->h,ztv->norm,i->format,i->bpp,i->bpl,i->busadr,i->overlay)); | |
560 | ||
561 | /* | |
562 | * make sure the DMA transfers are inhibited during our | |
563 | * reprogramming of the chip | |
564 | */ | |
565 | zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC); | |
566 | ||
567 | maxWidth = tvnorms[ztv->norm].Wa; | |
568 | maxHeight = tvnorms[ztv->norm].Ha/2; | |
569 | maxXOffset = tvnorms[ztv->norm].HStart; | |
570 | maxYOffset = tvnorms[ztv->norm].VStart; | |
571 | ||
572 | /* setup vfec register (keep ExtFl,TopField and VCLKPol settings) */ | |
573 | vfec = (zrread(ZORAN_VFEC) & (ZORAN_VFEC_EXTFL|ZORAN_VFEC_TOPFIELD|ZORAN_VFEC_VCLKPOL)) | | |
574 | (palette2fmt[i->format].mode & (ZORAN_VFEC_RGB|ZORAN_VFEC_ERRDIF|ZORAN_VFEC_LE|ZORAN_VFEC_PACK24)); | |
575 | ||
576 | /* | |
577 | * Set top, bottom ptrs. Since these must be DWORD aligned, | |
578 | * possible adjust the x and the width of the window. | |
579 | * so the endposition stay the same. The vidXshift will make | |
580 | * sure we are not writing pixels before the requested x. | |
581 | */ | |
582 | ztv->vidXshift = 0; | |
583 | winWidth = i->w; | |
584 | if (winWidth < 0) | |
585 | winWidth = -winWidth; | |
586 | top = i->busadr + i->x*i->bpp + i->y*i->bpl; | |
587 | if (top & 3) { | |
588 | ztv->vidXshift = (top & 3) / i->bpp; | |
589 | winWidth += ztv->vidXshift; | |
590 | DEBUG(printk(KERN_DEBUG " window-x shifted %d pixels left\n",ztv->vidXshift)); | |
591 | top &= ~3; | |
592 | } | |
593 | ||
594 | /* | |
595 | * bottom points to next frame but in interleaved mode we want | |
596 | * to 'mix' the 2 frames to one capture, so 'bot' points to one | |
597 | * (physical) line below the top line. | |
598 | */ | |
599 | bot = top + i->bpl; | |
600 | zrwrite(top,ZORAN_VTOP); | |
601 | zrwrite(bot,ZORAN_VBOT); | |
602 | ||
603 | /* | |
604 | * Make sure the winWidth is DWORD aligned too, | |
605 | * thereby automaticly making sure the stride to the | |
606 | * next line is DWORD aligned too (as required by spec). | |
607 | */ | |
608 | if ((winWidth*i->bpp) & 3) { | |
609 | DEBUG(printk(KERN_DEBUG " window-width enlarged by %d pixels\n",(winWidth*i->bpp) & 3)); | |
610 | winWidth += (winWidth*i->bpp) & 3; | |
611 | } | |
612 | ||
613 | /* determine the DispMode and stride */ | |
614 | if (i->h >= 0 && i->h <= maxHeight) { | |
615 | /* single frame grab suffices for this height. */ | |
616 | vfec |= ZORAN_VFEC_DISPMOD; | |
617 | ztv->vidInterlace = 0; | |
618 | stride = i->bpl - (winWidth*i->bpp); | |
619 | winHeight = i->h; | |
620 | } | |
621 | else { | |
622 | /* interleaving needed for this height */ | |
623 | ztv->vidInterlace = 1; | |
624 | stride = i->bpl*2 - (winWidth*i->bpp); | |
625 | winHeight = i->h/2; | |
626 | } | |
627 | if (winHeight < 0) /* can happen for VBI! */ | |
628 | winHeight = -winHeight; | |
629 | ||
630 | /* safety net, sometimes bpl is too short??? */ | |
631 | if (stride<0) { | |
632 | DEBUG(printk(CARD_DEBUG "WARNING stride = %d\n",CARD,stride)); | |
633 | stride = 0; | |
634 | } | |
635 | ||
636 | zraor((winHeight<<12)|(winWidth<<0),~(ZORAN_VDC_VIDWINHT|ZORAN_VDC_VIDWINWID), ZORAN_VDC); | |
637 | zraor(stride<<16,~ZORAN_VSTR_DISPSTRIDE,ZORAN_VSTR); | |
638 | ||
639 | /* remember vidWidth, vidHeight for overlay calculations */ | |
640 | ztv->vidWidth = winWidth; | |
641 | ztv->vidHeight = winHeight; | |
642 | DEBUG(printk(KERN_DEBUG " top=%08lx, bottom=%08lx\n",top,bot)); | |
643 | DEBUG(printk(KERN_DEBUG " winWidth=%d, winHeight=%d\n",winWidth,winHeight)); | |
644 | DEBUG(printk(KERN_DEBUG " maxWidth=%d, maxHeight=%d\n",maxWidth,maxHeight)); | |
645 | DEBUG(printk(KERN_DEBUG " stride=%d\n",stride)); | |
646 | ||
647 | /* | |
648 | * determine horizontal scales and crops | |
649 | */ | |
650 | if (i->w < 0) { | |
651 | int Hstart = 1; | |
652 | int Hend = Hstart + winWidth; | |
653 | DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Hstart, Hend)); | |
654 | zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH); | |
655 | } | |
656 | else { | |
657 | int Wa = maxWidth; | |
658 | int X = (winWidth*64+Wa-1)/Wa; | |
659 | int We = winWidth*64/X; | |
660 | int HorDcm = 64-X; | |
661 | int hcrop1 = 2*(Wa-We)/4; | |
662 | /* | |
663 | * BUGFIX: Juha Nurmela <junki@qn-lpr2-165.quicknet.inet.fi> | |
664 | * found the solution to the color phase shift. | |
665 | * See ChangeLog for the full explanation) | |
666 | */ | |
667 | int Hstart = (maxXOffset + hcrop1) | 1; | |
668 | int Hend = Hstart + We - 1; | |
669 | ||
670 | DEBUG(printk(KERN_DEBUG " X: scale=%d, start=%d, end=%d\n", HorDcm, Hstart, Hend)); | |
671 | ||
672 | zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH); | |
673 | vfec |= HorDcm<<14; | |
674 | ||
675 | if (HorDcm<16) | |
676 | vfec |= ZORAN_VFEC_HFILTER_1; /* no filter */ | |
677 | else if (HorDcm<32) | |
678 | vfec |= ZORAN_VFEC_HFILTER_3; /* 3 tap filter */ | |
679 | else if (HorDcm<48) | |
680 | vfec |= ZORAN_VFEC_HFILTER_4; /* 4 tap filter */ | |
681 | else vfec |= ZORAN_VFEC_HFILTER_5; /* 5 tap filter */ | |
682 | } | |
683 | ||
684 | /* | |
685 | * Determine vertical scales and crops | |
686 | * | |
687 | * when height is negative, we want to read starting at line 0 | |
688 | * One day someone might need access to these lines... | |
689 | */ | |
690 | if (i->h < 0) { | |
691 | int Vstart = 0; | |
692 | int Vend = Vstart + winHeight; | |
693 | DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Vstart, Vend)); | |
694 | zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV); | |
695 | } | |
696 | else { | |
697 | int Ha = maxHeight; | |
698 | int Y = (winHeight*64+Ha-1)/Ha; | |
699 | int He = winHeight*64/Y; | |
700 | int VerDcm = 64-Y; | |
701 | int vcrop1 = 2*(Ha-He)/4; | |
702 | int Vstart = maxYOffset + vcrop1; | |
703 | int Vend = Vstart + He - 1; | |
704 | ||
705 | DEBUG(printk(KERN_DEBUG " Y: scale=%d, start=%d, end=%d\n", VerDcm, Vstart, Vend)); | |
706 | zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV); | |
707 | vfec |= VerDcm<<8; | |
708 | } | |
709 | ||
710 | DEBUG(printk(KERN_DEBUG " F: format=%d(=%s)\n",i->format,palette2fmt[i->format].name)); | |
711 | ||
712 | /* setup the requested format */ | |
713 | zrwrite(vfec, ZORAN_VFEC); | |
714 | } | |
715 | ||
716 | static | |
717 | void zoran_common_open(struct zoran* ztv, int flags) | |
718 | { | |
719 | UNUSED(flags); | |
720 | ||
721 | /* already opened? */ | |
722 | if (ztv->users++ != 0) | |
723 | return; | |
724 | ||
725 | /* unmute audio */ | |
726 | /* /what/ audio? */ | |
727 | ||
728 | ztv->state = 0; | |
729 | ||
730 | /* setup the encoder to the initial values */ | |
731 | ztv->picture.colour=254<<7; | |
732 | ztv->picture.brightness=128<<8; | |
733 | ztv->picture.hue=128<<8; | |
734 | ztv->picture.contrast=216<<7; | |
735 | i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &ztv->picture); | |
736 | ||
737 | /* default to the composite input since my camera is there */ | |
738 | zoran_muxsel(ztv, 0, VIDEO_MODE_PAL); | |
739 | } | |
740 | ||
741 | static | |
742 | void zoran_common_close(struct zoran* ztv) | |
743 | { | |
744 | if (--ztv->users != 0) | |
745 | return; | |
746 | ||
747 | /* mute audio */ | |
748 | /* /what/ audio? */ | |
749 | ||
750 | /* stop the chip */ | |
751 | zoran_cap(ztv, 0); | |
752 | } | |
753 | ||
754 | /* | |
755 | * Open a zoran card. Right now the flags are just a hack | |
756 | */ | |
757 | static int zoran_open(struct video_device *dev, int flags) | |
758 | { | |
759 | struct zoran *ztv = (struct zoran*)dev; | |
760 | struct vidinfo* item; | |
761 | char* pos; | |
762 | ||
763 | DEBUG(printk(CARD_DEBUG "open(dev,%d)\n",CARD,flags)); | |
764 | ||
765 | /********************************************* | |
766 | * We really should be doing lazy allocing... | |
767 | *********************************************/ | |
768 | /* allocate a frame buffer */ | |
769 | if (!ztv->fbuffer) | |
770 | ztv->fbuffer = bmalloc(ZORAN_MAX_FBUFSIZE); | |
771 | if (!ztv->fbuffer) { | |
772 | /* could not get a buffer, bail out */ | |
773 | return -ENOBUFS; | |
774 | } | |
775 | /* at this time we _always_ have a framebuffer */ | |
776 | memset(ztv->fbuffer,0,ZORAN_MAX_FBUFSIZE); | |
777 | ||
778 | if (!ztv->overinfo.overlay) | |
779 | ztv->overinfo.overlay = kmalloc(1024*1024/8, GFP_KERNEL); | |
780 | if (!ztv->overinfo.overlay) { | |
781 | /* could not get an overlay buffer, bail out */ | |
782 | bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE); | |
783 | return -ENOBUFS; | |
784 | } | |
785 | /* at this time we _always_ have a overlay */ | |
786 | ||
787 | /* clear buffer status, and give them a DMAable address */ | |
788 | pos = ztv->fbuffer; | |
789 | for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++) | |
790 | { | |
791 | item->status = FBUFFER_FREE; | |
792 | item->memadr = pos; | |
793 | item->busadr = virt_to_bus(pos); | |
794 | pos += ZORAN_MAX_FBUFFER; | |
795 | } | |
796 | ||
797 | /* do the common part of all open's */ | |
798 | zoran_common_open(ztv, flags); | |
799 | ||
800 | return 0; | |
801 | } | |
802 | ||
803 | static | |
804 | void zoran_close(struct video_device* dev) | |
805 | { | |
806 | struct zoran *ztv = (struct zoran*)dev; | |
807 | ||
808 | DEBUG(printk(CARD_DEBUG "close(dev)\n",CARD)); | |
809 | ||
810 | /* driver specific closure */ | |
811 | clear_bit(STATE_OVERLAY, &ztv->state); | |
812 | ||
813 | zoran_common_close(ztv); | |
814 | ||
815 | /* | |
816 | * This is sucky but right now I can't find a good way to | |
817 | * be sure its safe to free the buffer. We wait 5-6 fields | |
818 | * which is more than sufficient to be sure. | |
819 | */ | |
820 | msleep(100); /* Wait 1/10th of a second */ | |
821 | ||
822 | /* free the allocated framebuffer */ | |
f9101210 | 823 | bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE); |
1da177e4 | 824 | ztv->fbuffer = 0; |
f9101210 | 825 | kfree(ztv->overinfo.overlay); |
1da177e4 LT |
826 | ztv->overinfo.overlay = 0; |
827 | ||
828 | } | |
829 | ||
830 | /* | |
831 | * This read function could be used reentrant in a SMP situation. | |
832 | * | |
833 | * This is made possible by the spinlock which is kept till we | |
834 | * found and marked a buffer for our own use. The lock must | |
835 | * be released as soon as possible to prevent lock contention. | |
836 | */ | |
837 | static | |
838 | long zoran_read(struct video_device* dev, char* buf, unsigned long count, int nonblock) | |
839 | { | |
840 | struct zoran *ztv = (struct zoran*)dev; | |
841 | unsigned long max; | |
842 | struct vidinfo* unused = 0; | |
843 | struct vidinfo* done = 0; | |
844 | ||
845 | DEBUG(printk(CARD_DEBUG "zoran_read(%p,%ld,%d)\n",CARD,buf,count,nonblock)); | |
846 | ||
847 | /* find ourself a free or completed buffer */ | |
848 | for (;;) { | |
849 | struct vidinfo* item; | |
850 | ||
851 | write_lock_irq(&ztv->lock); | |
852 | for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++) | |
853 | { | |
854 | if (!unused && item->status == FBUFFER_FREE) | |
855 | unused = item; | |
856 | if (!done && item->status == FBUFFER_DONE) | |
857 | done = item; | |
858 | } | |
859 | if (done || unused) | |
860 | break; | |
861 | ||
862 | /* no more free buffers, wait for them. */ | |
863 | write_unlock_irq(&ztv->lock); | |
864 | if (nonblock) | |
865 | return -EWOULDBLOCK; | |
866 | interruptible_sleep_on(&ztv->grabq); | |
867 | if (signal_pending(current)) | |
868 | return -EINTR; | |
869 | } | |
870 | ||
871 | /* Do we have 'ready' data? */ | |
872 | if (!done) { | |
873 | /* no? than this will take a while... */ | |
874 | if (nonblock) { | |
875 | write_unlock_irq(&ztv->lock); | |
876 | return -EWOULDBLOCK; | |
877 | } | |
878 | ||
879 | /* mark the unused buffer as wanted */ | |
880 | unused->status = FBUFFER_BUSY; | |
881 | unused->w = 320; | |
882 | unused->h = 240; | |
883 | unused->format = VIDEO_PALETTE_RGB24; | |
884 | unused->bpp = palette2fmt[unused->format].bpp; | |
885 | unused->bpl = unused->w * unused->bpp; | |
886 | unused->next = 0; | |
887 | { /* add to tail of queue */ | |
888 | struct vidinfo* oldframe = ztv->workqueue; | |
889 | if (!oldframe) ztv->workqueue = unused; | |
890 | else { | |
891 | while (oldframe->next) oldframe = oldframe->next; | |
892 | oldframe->next = unused; | |
893 | } | |
894 | } | |
895 | write_unlock_irq(&ztv->lock); | |
896 | ||
897 | /* tell the state machine we want it filled /NOW/ */ | |
898 | zoran_cap(ztv, 1); | |
899 | ||
900 | /* wait till this buffer gets grabbed */ | |
901 | wait_event_interruptible(ztv->grabq, | |
902 | (unused->status != FBUFFER_BUSY)); | |
903 | /* see if a signal did it */ | |
904 | if (signal_pending(current)) | |
905 | return -EINTR; | |
906 | done = unused; | |
907 | } | |
908 | else | |
909 | write_unlock_irq(&ztv->lock); | |
910 | ||
911 | /* Yes! we got data! */ | |
912 | max = done->bpl * done->h; | |
913 | if (count > max) | |
914 | count = max; | |
915 | if (copy_to_user((void*)buf, done->memadr, count)) | |
916 | count = -EFAULT; | |
917 | ||
918 | /* keep the engine running */ | |
919 | done->status = FBUFFER_FREE; | |
920 | // zoran_cap(ztv,1); | |
921 | ||
922 | /* tell listeners this buffer became free */ | |
923 | wake_up_interruptible(&ztv->grabq); | |
924 | ||
925 | /* goodbye */ | |
926 | DEBUG(printk(CARD_DEBUG "zoran_read() returns %lu\n",CARD,count)); | |
927 | return count; | |
928 | } | |
929 | ||
930 | static | |
931 | long zoran_write(struct video_device* dev, const char* buf, unsigned long count, int nonblock) | |
932 | { | |
933 | struct zoran *ztv = (struct zoran *)dev; | |
934 | UNUSED(ztv); UNUSED(dev); UNUSED(buf); UNUSED(count); UNUSED(nonblock); | |
935 | DEBUG(printk(CARD_DEBUG "zoran_write\n",CARD)); | |
936 | return -EINVAL; | |
937 | } | |
938 | ||
939 | static | |
940 | unsigned int zoran_poll(struct video_device *dev, struct file *file, poll_table *wait) | |
941 | { | |
942 | struct zoran *ztv = (struct zoran *)dev; | |
943 | struct vidinfo* item; | |
944 | unsigned int mask = 0; | |
945 | ||
946 | poll_wait(file, &ztv->grabq, wait); | |
947 | ||
948 | for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++) | |
949 | if (item->status == FBUFFER_DONE) | |
950 | { | |
951 | mask |= (POLLIN | POLLRDNORM); | |
952 | break; | |
953 | } | |
954 | ||
955 | DEBUG(printk(CARD_DEBUG "zoran_poll()=%x\n",CARD,mask)); | |
956 | ||
957 | return mask; | |
958 | } | |
959 | ||
960 | /* append a new clipregion to the vector of video_clips */ | |
961 | static | |
962 | void new_clip(struct video_window* vw, struct video_clip* vcp, int x, int y, int w, int h) | |
963 | { | |
964 | vcp[vw->clipcount].x = x; | |
965 | vcp[vw->clipcount].y = y; | |
966 | vcp[vw->clipcount].width = w; | |
967 | vcp[vw->clipcount].height = h; | |
968 | vw->clipcount++; | |
969 | } | |
970 | ||
971 | static | |
972 | int zoran_ioctl(struct video_device* dev, unsigned int cmd, void *arg) | |
973 | { | |
974 | struct zoran* ztv = (struct zoran*)dev; | |
975 | ||
976 | switch (cmd) { | |
977 | case VIDIOCGCAP: | |
978 | { | |
979 | struct video_capability c; | |
980 | DEBUG(printk(CARD_DEBUG "VIDIOCGCAP\n",CARD)); | |
981 | ||
982 | strcpy(c.name,ztv->video_dev.name); | |
983 | c.type = VID_TYPE_CAPTURE| | |
984 | VID_TYPE_OVERLAY| | |
985 | VID_TYPE_CLIPPING| | |
986 | VID_TYPE_FRAMERAM| | |
987 | VID_TYPE_SCALES; | |
988 | if (ztv->have_tuner) | |
989 | c.type |= VID_TYPE_TUNER; | |
990 | if (ztv->have_decoder) { | |
991 | c.channels = ztv->card->video_inputs; | |
992 | c.audios = ztv->card->audio_inputs; | |
993 | } else | |
994 | /* no decoder -> no channels */ | |
995 | c.channels = c.audios = 0; | |
996 | c.maxwidth = 768; | |
997 | c.maxheight = 576; | |
998 | c.minwidth = 32; | |
999 | c.minheight = 32; | |
1000 | if (copy_to_user(arg,&c,sizeof(c))) | |
1001 | return -EFAULT; | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | case VIDIOCGCHAN: | |
1006 | { | |
1007 | struct video_channel v; | |
1008 | int mux; | |
1009 | if (copy_from_user(&v, arg,sizeof(v))) | |
1010 | return -EFAULT; | |
1011 | DEBUG(printk(CARD_DEBUG "VIDIOCGCHAN(%d)\n",CARD,v.channel)); | |
1012 | v.flags=VIDEO_VC_AUDIO | |
1013 | #ifdef VIDEO_VC_NORM | |
1014 | |VIDEO_VC_NORM | |
1015 | #endif | |
1016 | ; | |
1017 | v.tuners=0; | |
1018 | v.type=VIDEO_TYPE_CAMERA; | |
1019 | #ifdef I_EXPECT_POSSIBLE_NORMS_IN_THE_API | |
1020 | v.norm=VIDEO_MODE_PAL| | |
1021 | VIDEO_MODE_NTSC| | |
1022 | VIDEO_MODE_SECAM; | |
1023 | #else | |
1024 | v.norm=VIDEO_MODE_PAL; | |
1025 | #endif | |
1026 | /* too many inputs? no decoder -> no channels */ | |
1027 | if (!ztv->have_decoder || v.channel < 0 || v.channel >= ztv->card->video_inputs) | |
1028 | return -EINVAL; | |
1029 | ||
1030 | /* now determine the name of the channel */ | |
1031 | mux = ztv->card->video_mux[v.channel]; | |
1032 | if (mux & IS_TUNER) { | |
1033 | /* lets assume only one tuner, yes? */ | |
1034 | strcpy(v.name,"Television"); | |
1035 | v.type = VIDEO_TYPE_TV; | |
1036 | if (ztv->have_tuner) { | |
1037 | v.flags |= VIDEO_VC_TUNER; | |
1038 | v.tuners = 1; | |
1039 | } | |
1040 | } | |
1041 | else if (mux & IS_SVHS) | |
1042 | sprintf(v.name,"S-Video-%d",v.channel); | |
1043 | else | |
1044 | sprintf(v.name,"CVBS-%d",v.channel); | |
1045 | ||
1046 | if (copy_to_user(arg,&v,sizeof(v))) | |
1047 | return -EFAULT; | |
1048 | break; | |
1049 | } | |
1050 | case VIDIOCSCHAN: | |
1051 | { /* set video channel */ | |
1052 | struct video_channel v; | |
1053 | if (copy_from_user(&v, arg,sizeof(v))) | |
1054 | return -EFAULT; | |
1055 | DEBUG(printk(CARD_DEBUG "VIDIOCSCHAN(%d,%d)\n",CARD,v.channel,v.norm)); | |
1056 | ||
1057 | /* too many inputs? no decoder -> no channels */ | |
1058 | if (!ztv->have_decoder || v.channel >= ztv->card->video_inputs || v.channel < 0) | |
1059 | return -EINVAL; | |
1060 | ||
1061 | if (v.norm != VIDEO_MODE_PAL && | |
1062 | v.norm != VIDEO_MODE_NTSC && | |
1063 | v.norm != VIDEO_MODE_SECAM && | |
1064 | v.norm != VIDEO_MODE_AUTO) | |
1065 | return -EOPNOTSUPP; | |
1066 | ||
1067 | /* make it happen, nr1! */ | |
1068 | return zoran_muxsel(ztv,v.channel,v.norm); | |
1069 | } | |
1070 | ||
1071 | case VIDIOCGTUNER: | |
1072 | { | |
1073 | struct video_tuner v; | |
1074 | if (copy_from_user(&v, arg,sizeof(v))) | |
1075 | return -EFAULT; | |
1076 | DEBUG(printk(CARD_DEBUG "VIDIOCGTUNER(%d)\n",CARD,v.tuner)); | |
1077 | ||
1078 | /* Only no or one tuner for now */ | |
1079 | if (!ztv->have_tuner || v.tuner) | |
1080 | return -EINVAL; | |
1081 | ||
1082 | strcpy(v.name,"Television"); | |
1083 | v.rangelow = 0; | |
1084 | v.rangehigh = ~0; | |
1085 | v.flags = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM; | |
1086 | v.mode = ztv->norm; | |
1087 | v.signal = 0xFFFF; /* unknown */ | |
1088 | ||
1089 | if (copy_to_user(arg,&v,sizeof(v))) | |
1090 | return -EFAULT; | |
1091 | break; | |
1092 | } | |
1093 | case VIDIOCSTUNER: | |
1094 | { | |
1095 | struct video_tuner v; | |
1096 | if (copy_from_user(&v, arg, sizeof(v))) | |
1097 | return -EFAULT; | |
1098 | DEBUG(printk(CARD_DEBUG "VIDIOCSTUNER(%d,%d)\n",CARD,v.tuner,v.mode)); | |
1099 | ||
1100 | /* Only no or one tuner for now */ | |
1101 | if (!ztv->have_tuner || v.tuner) | |
1102 | return -EINVAL; | |
1103 | ||
1104 | /* and it only has certain valid modes */ | |
1105 | if( v.mode != VIDEO_MODE_PAL && | |
1106 | v.mode != VIDEO_MODE_NTSC && | |
1107 | v.mode != VIDEO_MODE_SECAM) | |
1108 | return -EOPNOTSUPP; | |
1109 | ||
1110 | /* engage! */ | |
1111 | return zoran_muxsel(ztv,v.tuner,v.mode); | |
1112 | } | |
1113 | ||
1114 | case VIDIOCGPICT: | |
1115 | { | |
1116 | struct video_picture p = ztv->picture; | |
1117 | DEBUG(printk(CARD_DEBUG "VIDIOCGPICT\n",CARD)); | |
1118 | p.depth = ztv->depth; | |
1119 | switch (p.depth) { | |
1120 | case 8: p.palette=VIDEO_PALETTE_YUV422; | |
1121 | break; | |
1122 | case 15: p.palette=VIDEO_PALETTE_RGB555; | |
1123 | break; | |
1124 | case 16: p.palette=VIDEO_PALETTE_RGB565; | |
1125 | break; | |
1126 | case 24: p.palette=VIDEO_PALETTE_RGB24; | |
1127 | break; | |
1128 | case 32: p.palette=VIDEO_PALETTE_RGB32; | |
1129 | break; | |
1130 | } | |
1131 | if (copy_to_user(arg, &p, sizeof(p))) | |
1132 | return -EFAULT; | |
1133 | break; | |
1134 | } | |
1135 | case VIDIOCSPICT: | |
1136 | { | |
1137 | struct video_picture p; | |
1138 | if (copy_from_user(&p, arg,sizeof(p))) | |
1139 | return -EFAULT; | |
1140 | DEBUG(printk(CARD_DEBUG "VIDIOCSPICT(%d,%d,%d,%d,%d,%d,%d)\n",CARD,p.brightness,p.hue,p.colour,p.contrast,p.whiteness,p.depth,p.palette)); | |
1141 | ||
1142 | /* depth must match with framebuffer */ | |
1143 | if (p.depth != ztv->depth) | |
1144 | return -EINVAL; | |
1145 | ||
1146 | /* check if palette matches this bpp */ | |
1147 | if (p.palette>NRPALETTES || | |
1148 | palette2fmt[p.palette].bpp != ztv->overinfo.bpp) | |
1149 | return -EINVAL; | |
1150 | ||
1151 | write_lock_irq(&ztv->lock); | |
1152 | ztv->overinfo.format = p.palette; | |
1153 | ztv->picture = p; | |
1154 | write_unlock_irq(&ztv->lock); | |
1155 | ||
1156 | /* tell the decoder */ | |
1157 | i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &p); | |
1158 | break; | |
1159 | } | |
1160 | ||
1161 | case VIDIOCGWIN: | |
1162 | { | |
1163 | struct video_window vw; | |
1164 | DEBUG(printk(CARD_DEBUG "VIDIOCGWIN\n",CARD)); | |
1165 | read_lock(&ztv->lock); | |
1166 | vw.x = ztv->overinfo.x; | |
1167 | vw.y = ztv->overinfo.y; | |
1168 | vw.width = ztv->overinfo.w; | |
1169 | vw.height = ztv->overinfo.h; | |
1170 | vw.chromakey= 0; | |
1171 | vw.flags = 0; | |
1172 | if (ztv->vidInterlace) | |
1173 | vw.flags|=VIDEO_WINDOW_INTERLACE; | |
1174 | read_unlock(&ztv->lock); | |
1175 | if (copy_to_user(arg,&vw,sizeof(vw))) | |
1176 | return -EFAULT; | |
1177 | break; | |
1178 | } | |
1179 | case VIDIOCSWIN: | |
1180 | { | |
1181 | struct video_window vw; | |
1182 | struct video_clip *vcp; | |
1183 | int on; | |
1184 | if (copy_from_user(&vw,arg,sizeof(vw))) | |
1185 | return -EFAULT; | |
1186 | DEBUG(printk(CARD_DEBUG "VIDIOCSWIN(%d,%d,%d,%d,%x,%d)\n",CARD,vw.x,vw.y,vw.width,vw.height,vw.flags,vw.clipcount)); | |
1187 | ||
1188 | if (vw.flags) | |
1189 | return -EINVAL; | |
1190 | ||
1191 | if (vw.clipcount <0 || vw.clipcount>256) | |
1192 | return -EDOM; /* Too many! */ | |
1193 | ||
1194 | /* | |
1195 | * Do any clips. | |
1196 | */ | |
1197 | vcp = vmalloc(sizeof(struct video_clip)*(vw.clipcount+4)); | |
1198 | if (vcp==NULL) | |
1199 | return -ENOMEM; | |
1200 | if (vw.clipcount && copy_from_user(vcp,vw.clips,sizeof(struct video_clip)*vw.clipcount)) { | |
1201 | vfree(vcp); | |
1202 | return -EFAULT; | |
1203 | } | |
1204 | ||
1205 | on = ztv->running; | |
1206 | if (on) | |
1207 | zoran_cap(ztv, 0); | |
1208 | ||
1209 | /* | |
1210 | * strange, it seems xawtv sometimes calls us with 0 | |
1211 | * width and/or height. Ignore these values | |
1212 | */ | |
1213 | if (vw.x == 0) | |
1214 | vw.x = ztv->overinfo.x; | |
1215 | if (vw.y == 0) | |
1216 | vw.y = ztv->overinfo.y; | |
1217 | ||
1218 | /* by now we are committed to the new data... */ | |
1219 | write_lock_irq(&ztv->lock); | |
1220 | ztv->overinfo.x = vw.x; | |
1221 | ztv->overinfo.y = vw.y; | |
1222 | ztv->overinfo.w = vw.width; | |
1223 | ztv->overinfo.h = vw.height; | |
1224 | write_unlock_irq(&ztv->lock); | |
1225 | ||
1226 | /* | |
1227 | * Impose display clips | |
1228 | */ | |
1229 | if (vw.x+vw.width > ztv->swidth) | |
1230 | new_clip(&vw, vcp, ztv->swidth-vw.x, 0, vw.width-1, vw.height-1); | |
1231 | if (vw.y+vw.height > ztv->sheight) | |
1232 | new_clip(&vw, vcp, 0, ztv->sheight-vw.y, vw.width-1, vw.height-1); | |
1233 | ||
1234 | /* built the requested clipping zones */ | |
1235 | zoran_set_geo(ztv, &ztv->overinfo); | |
1236 | zoran_built_overlay(ztv, vw.clipcount, vcp); | |
1237 | vfree(vcp); | |
1238 | ||
1239 | /* if we were on, restart the video engine */ | |
1240 | if (on) | |
1241 | zoran_cap(ztv, 1); | |
1242 | break; | |
1243 | } | |
1244 | ||
1245 | case VIDIOCCAPTURE: | |
1246 | { | |
1247 | int v; | |
1248 | if (get_user(v, (int *)arg)) | |
1249 | return -EFAULT; | |
1250 | DEBUG(printk(CARD_DEBUG "VIDIOCCAPTURE(%d)\n",CARD,v)); | |
1251 | ||
1252 | if (v==0) { | |
1253 | clear_bit(STATE_OVERLAY, &ztv->state); | |
1254 | zoran_cap(ztv, 1); | |
1255 | } | |
1256 | else { | |
1257 | /* is VIDIOCSFBUF, VIDIOCSWIN done? */ | |
1258 | if (ztv->overinfo.busadr==0 || ztv->overinfo.w==0 || ztv->overinfo.h==0) | |
1259 | return -EINVAL; | |
1260 | ||
1261 | set_bit(STATE_OVERLAY, &ztv->state); | |
1262 | zoran_cap(ztv, 1); | |
1263 | } | |
1264 | break; | |
1265 | } | |
1266 | ||
1267 | case VIDIOCGFBUF: | |
1268 | { | |
1269 | struct video_buffer v; | |
1270 | DEBUG(printk(CARD_DEBUG "VIDIOCGFBUF\n",CARD)); | |
1271 | read_lock(&ztv->lock); | |
1272 | v.base = (void *)ztv->overinfo.busadr; | |
1273 | v.height = ztv->sheight; | |
1274 | v.width = ztv->swidth; | |
1275 | v.depth = ztv->depth; | |
1276 | v.bytesperline = ztv->overinfo.bpl; | |
1277 | read_unlock(&ztv->lock); | |
1278 | if(copy_to_user(arg, &v,sizeof(v))) | |
1279 | return -EFAULT; | |
1280 | break; | |
1281 | } | |
1282 | case VIDIOCSFBUF: | |
1283 | { | |
1284 | struct video_buffer v; | |
1285 | if(!capable(CAP_SYS_ADMIN)) | |
1286 | return -EPERM; | |
1287 | if (copy_from_user(&v, arg,sizeof(v))) | |
1288 | return -EFAULT; | |
1289 | DEBUG(printk(CARD_DEBUG "VIDIOCSFBUF(%p,%d,%d,%d,%d)\n",CARD,v.base, v.width,v.height,v.depth,v.bytesperline)); | |
1290 | ||
1291 | if (v.depth!=15 && v.depth!=16 && v.depth!=24 && v.depth!=32) | |
1292 | return -EINVAL; | |
1293 | if (v.bytesperline<1) | |
1294 | return -EINVAL; | |
1295 | if (ztv->running) | |
1296 | return -EBUSY; | |
1297 | write_lock_irq(&ztv->lock); | |
1298 | ztv->overinfo.busadr = (ulong)v.base; | |
1299 | ztv->sheight = v.height; | |
1300 | ztv->swidth = v.width; | |
1301 | ztv->depth = v.depth; /* bits per pixel */ | |
1302 | ztv->overinfo.bpp = ((v.depth+1)&0x38)/8;/* bytes per pixel */ | |
1303 | ztv->overinfo.bpl = v.bytesperline; /* bytes per line */ | |
1304 | write_unlock_irq(&ztv->lock); | |
1305 | break; | |
1306 | } | |
1307 | ||
1308 | case VIDIOCKEY: | |
1309 | { | |
1310 | /* Will be handled higher up .. */ | |
1311 | break; | |
1312 | } | |
1313 | ||
1314 | case VIDIOCSYNC: | |
1315 | { | |
1316 | int i; | |
1317 | if (get_user(i, (int *) arg)) | |
1318 | return -EFAULT; | |
1319 | DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d)\n",CARD,i)); | |
1320 | if (i<0 || i>ZORAN_MAX_FBUFFERS) | |
1321 | return -EINVAL; | |
1322 | switch (ztv->grabinfo[i].status) { | |
1323 | case FBUFFER_FREE: | |
1324 | return -EINVAL; | |
1325 | case FBUFFER_BUSY: | |
1326 | /* wait till this buffer gets grabbed */ | |
1327 | wait_event_interruptible(ztv->grabq, | |
1328 | (ztv->grabinfo[i].status != FBUFFER_BUSY)); | |
1329 | /* see if a signal did it */ | |
1330 | if (signal_pending(current)) | |
1331 | return -EINTR; | |
1332 | /* don't fall through; a DONE buffer is not UNUSED */ | |
1333 | break; | |
1334 | case FBUFFER_DONE: | |
1335 | ztv->grabinfo[i].status = FBUFFER_FREE; | |
1336 | /* tell ppl we have a spare buffer */ | |
1337 | wake_up_interruptible(&ztv->grabq); | |
1338 | break; | |
1339 | } | |
1340 | DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d) returns\n",CARD,i)); | |
1341 | break; | |
1342 | } | |
1343 | ||
1344 | case VIDIOCMCAPTURE: | |
1345 | { | |
1346 | struct video_mmap vm; | |
1347 | struct vidinfo* frame; | |
1348 | if (copy_from_user(&vm,arg,sizeof(vm))) | |
1349 | return -EFAULT; | |
1350 | DEBUG(printk(CARD_DEBUG "VIDIOCMCAPTURE(%d,(%d,%d),%d)\n",CARD,vm.frame,vm.width,vm.height,vm.format)); | |
1351 | if (vm.frame<0 || vm.frame>ZORAN_MAX_FBUFFERS || | |
1352 | vm.width<32 || vm.width>768 || | |
1353 | vm.height<32 || vm.height>576 || | |
1354 | vm.format>NRPALETTES || | |
1355 | palette2fmt[vm.format].mode == 0) | |
1356 | return -EINVAL; | |
1357 | ||
1358 | /* we are allowed to take over UNUSED and DONE buffers */ | |
1359 | frame = &ztv->grabinfo[vm.frame]; | |
1360 | if (frame->status == FBUFFER_BUSY) | |
1361 | return -EBUSY; | |
1362 | ||
1363 | /* setup the other parameters if they are given */ | |
1364 | write_lock_irq(&ztv->lock); | |
1365 | frame->w = vm.width; | |
1366 | frame->h = vm.height; | |
1367 | frame->format = vm.format; | |
1368 | frame->bpp = palette2fmt[frame->format].bpp; | |
1369 | frame->bpl = frame->w*frame->bpp; | |
1370 | frame->status = FBUFFER_BUSY; | |
1371 | frame->next = 0; | |
1372 | { /* add to tail of queue */ | |
1373 | struct vidinfo* oldframe = ztv->workqueue; | |
1374 | if (!oldframe) ztv->workqueue = frame; | |
1375 | else { | |
1376 | while (oldframe->next) oldframe = oldframe->next; | |
1377 | oldframe->next = frame; | |
1378 | } | |
1379 | } | |
1380 | write_unlock_irq(&ztv->lock); | |
1381 | zoran_cap(ztv, 1); | |
1382 | break; | |
1383 | } | |
1384 | ||
1385 | case VIDIOCGMBUF: | |
1386 | { | |
1387 | struct video_mbuf mb; | |
1388 | int i; | |
1389 | DEBUG(printk(CARD_DEBUG "VIDIOCGMBUF\n",CARD)); | |
1390 | mb.size = ZORAN_MAX_FBUFSIZE; | |
1391 | mb.frames = ZORAN_MAX_FBUFFERS; | |
1392 | for (i=0; i<ZORAN_MAX_FBUFFERS; i++) | |
1393 | mb.offsets[i] = i*ZORAN_MAX_FBUFFER; | |
1394 | if(copy_to_user(arg, &mb,sizeof(mb))) | |
1395 | return -EFAULT; | |
1396 | break; | |
1397 | } | |
1398 | ||
1399 | case VIDIOCGUNIT: | |
1400 | { | |
1401 | struct video_unit vu; | |
1402 | DEBUG(printk(CARD_DEBUG "VIDIOCGUNIT\n",CARD)); | |
1403 | vu.video = ztv->video_dev.minor; | |
1404 | vu.vbi = ztv->vbi_dev.minor; | |
1405 | vu.radio = VIDEO_NO_UNIT; | |
1406 | vu.audio = VIDEO_NO_UNIT; | |
1407 | vu.teletext = VIDEO_NO_UNIT; | |
1408 | if(copy_to_user(arg, &vu,sizeof(vu))) | |
1409 | return -EFAULT; | |
1410 | break; | |
1411 | } | |
1412 | ||
1413 | case VIDIOCGFREQ: | |
1414 | { | |
1415 | unsigned long v = ztv->tuner_freq; | |
1416 | if (copy_to_user(arg,&v,sizeof(v))) | |
1417 | return -EFAULT; | |
1418 | DEBUG(printk(CARD_DEBUG "VIDIOCGFREQ\n",CARD)); | |
1419 | break; | |
1420 | } | |
1421 | case VIDIOCSFREQ: | |
1422 | { | |
1423 | unsigned long v; | |
1424 | if (copy_from_user(&v, arg, sizeof(v))) | |
1425 | return -EFAULT; | |
1426 | DEBUG(printk(CARD_DEBUG "VIDIOCSFREQ\n",CARD)); | |
1427 | ||
1428 | if (ztv->have_tuner) { | |
1429 | int fixme = v; | |
1430 | if (i2c_control_device(&(ztv->i2c), I2C_DRIVERID_TUNER, TUNER_SET_TVFREQ, &fixme) < 0) | |
1431 | return -EAGAIN; | |
1432 | } | |
1433 | ztv->tuner_freq = v; | |
1434 | break; | |
1435 | } | |
1436 | ||
1437 | /* Why isn't this in the API? | |
1438 | * And why doesn't it take a buffer number? | |
1439 | case BTTV_FIELDNR: | |
1440 | { | |
1441 | unsigned long v = ztv->lastfieldnr; | |
1442 | if (copy_to_user(arg,&v,sizeof(v))) | |
1443 | return -EFAULT; | |
1444 | DEBUG(printk(CARD_DEBUG "BTTV_FIELDNR\n",CARD)); | |
1445 | break; | |
1446 | } | |
1447 | */ | |
1448 | ||
1449 | default: | |
1450 | return -ENOIOCTLCMD; | |
1451 | } | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | static | |
1456 | int zoran_mmap(struct vm_area_struct *vma, struct video_device* dev, const char* adr, unsigned long size) | |
1457 | { | |
1458 | struct zoran* ztv = (struct zoran*)dev; | |
1459 | unsigned long start = (unsigned long)adr; | |
1460 | unsigned long pos; | |
1461 | ||
1462 | DEBUG(printk(CARD_DEBUG "zoran_mmap(0x%p,%ld)\n",CARD,adr,size)); | |
1463 | ||
1464 | /* sanity checks */ | |
1465 | if (size > ZORAN_MAX_FBUFSIZE || !ztv->fbuffer) | |
1466 | return -EINVAL; | |
1467 | ||
1468 | /* start mapping the whole shabang to user memory */ | |
1469 | pos = (unsigned long)ztv->fbuffer; | |
1470 | while (size>0) { | |
1471 | unsigned long pfn = virt_to_phys((void*)pos) >> PAGE_SHIFT; | |
1472 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) | |
1473 | return -EAGAIN; | |
1474 | start += PAGE_SIZE; | |
1475 | pos += PAGE_SIZE; | |
1476 | size -= PAGE_SIZE; | |
1477 | } | |
1478 | return 0; | |
1479 | } | |
1480 | ||
1481 | static struct video_device zr36120_template= | |
1482 | { | |
1483 | .owner = THIS_MODULE, | |
1484 | .name = "UNSET", | |
1485 | .type = VID_TYPE_TUNER|VID_TYPE_CAPTURE|VID_TYPE_OVERLAY, | |
1486 | .hardware = VID_HARDWARE_ZR36120, | |
1487 | .open = zoran_open, | |
1488 | .close = zoran_close, | |
1489 | .read = zoran_read, | |
1490 | .write = zoran_write, | |
1491 | .poll = zoran_poll, | |
1492 | .ioctl = zoran_ioctl, | |
0d0fbf81 | 1493 | .compat_ioctl = v4l_compat_ioctl32, |
1da177e4 LT |
1494 | .mmap = zoran_mmap, |
1495 | .minor = -1, | |
1496 | }; | |
1497 | ||
1498 | static | |
1499 | int vbi_open(struct video_device *dev, int flags) | |
1500 | { | |
1501 | struct zoran *ztv = dev->priv; | |
1502 | struct vidinfo* item; | |
1503 | ||
1504 | DEBUG(printk(CARD_DEBUG "vbi_open(dev,%d)\n",CARD,flags)); | |
1505 | ||
1506 | /* | |
1507 | * During VBI device open, we continiously grab VBI-like | |
1508 | * data in the vbi buffer when we have nothing to do. | |
1509 | * Only when there is an explicit request for VBI data | |
1510 | * (read call) we /force/ a read. | |
1511 | */ | |
1512 | ||
1513 | /* allocate buffers */ | |
1514 | for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) | |
1515 | { | |
1516 | item->status = FBUFFER_FREE; | |
1517 | ||
1518 | /* alloc */ | |
1519 | if (!item->memadr) { | |
1520 | item->memadr = bmalloc(ZORAN_VBI_BUFSIZE); | |
1521 | if (!item->memadr) { | |
1522 | /* could not get a buffer, bail out */ | |
1523 | while (item != ztv->readinfo) { | |
1524 | item--; | |
1525 | bfree(item->memadr, ZORAN_VBI_BUFSIZE); | |
1526 | item->memadr = 0; | |
1527 | item->busadr = 0; | |
1528 | } | |
1529 | return -ENOBUFS; | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | /* determine the DMAable address */ | |
1534 | item->busadr = virt_to_bus(item->memadr); | |
1535 | } | |
1536 | ||
1537 | /* do the common part of all open's */ | |
1538 | zoran_common_open(ztv, flags); | |
1539 | ||
1540 | set_bit(STATE_VBI, &ztv->state); | |
1541 | /* start read-ahead */ | |
1542 | zoran_cap(ztv, 1); | |
1543 | ||
1544 | return 0; | |
1545 | } | |
1546 | ||
1547 | static | |
1548 | void vbi_close(struct video_device *dev) | |
1549 | { | |
1550 | struct zoran *ztv = dev->priv; | |
1551 | struct vidinfo* item; | |
1552 | ||
1553 | DEBUG(printk(CARD_DEBUG "vbi_close(dev)\n",CARD)); | |
1554 | ||
1555 | /* driver specific closure */ | |
1556 | clear_bit(STATE_VBI, &ztv->state); | |
1557 | ||
1558 | zoran_common_close(ztv); | |
1559 | ||
1560 | /* | |
1561 | * This is sucky but right now I can't find a good way to | |
1562 | * be sure its safe to free the buffer. We wait 5-6 fields | |
1563 | * which is more than sufficient to be sure. | |
1564 | */ | |
1565 | msleep(100); /* Wait 1/10th of a second */ | |
1566 | ||
1567 | for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) | |
1568 | { | |
1569 | if (item->memadr) | |
1570 | bfree(item->memadr, ZORAN_VBI_BUFSIZE); | |
1571 | item->memadr = 0; | |
1572 | } | |
1573 | ||
1574 | } | |
1575 | ||
1576 | /* | |
1577 | * This read function could be used reentrant in a SMP situation. | |
1578 | * | |
1579 | * This is made possible by the spinlock which is kept till we | |
1580 | * found and marked a buffer for our own use. The lock must | |
1581 | * be released as soon as possible to prevent lock contention. | |
1582 | */ | |
1583 | static | |
1584 | long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonblock) | |
1585 | { | |
1586 | struct zoran *ztv = dev->priv; | |
1587 | unsigned long max; | |
1588 | struct vidinfo* unused = 0; | |
1589 | struct vidinfo* done = 0; | |
1590 | ||
1591 | DEBUG(printk(CARD_DEBUG "vbi_read(0x%p,%ld,%d)\n",CARD,buf,count,nonblock)); | |
1592 | ||
1593 | /* find ourself a free or completed buffer */ | |
1594 | for (;;) { | |
1595 | struct vidinfo* item; | |
1596 | ||
1597 | write_lock_irq(&ztv->lock); | |
1598 | for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) { | |
1599 | if (!unused && item->status == FBUFFER_FREE) | |
1600 | unused = item; | |
1601 | if (!done && item->status == FBUFFER_DONE) | |
1602 | done = item; | |
1603 | } | |
1604 | if (done || unused) | |
1605 | break; | |
1606 | ||
1607 | /* no more free buffers, wait for them. */ | |
1608 | write_unlock_irq(&ztv->lock); | |
1609 | if (nonblock) | |
1610 | return -EWOULDBLOCK; | |
1611 | interruptible_sleep_on(&ztv->vbiq); | |
1612 | if (signal_pending(current)) | |
1613 | return -EINTR; | |
1614 | } | |
1615 | ||
1616 | /* Do we have 'ready' data? */ | |
1617 | if (!done) { | |
1618 | /* no? than this will take a while... */ | |
1619 | if (nonblock) { | |
1620 | write_unlock_irq(&ztv->lock); | |
1621 | return -EWOULDBLOCK; | |
1622 | } | |
1623 | ||
1624 | /* mark the unused buffer as wanted */ | |
1625 | unused->status = FBUFFER_BUSY; | |
1626 | unused->next = 0; | |
1627 | { /* add to tail of queue */ | |
1628 | struct vidinfo* oldframe = ztv->workqueue; | |
1629 | if (!oldframe) ztv->workqueue = unused; | |
1630 | else { | |
1631 | while (oldframe->next) oldframe = oldframe->next; | |
1632 | oldframe->next = unused; | |
1633 | } | |
1634 | } | |
1635 | write_unlock_irq(&ztv->lock); | |
1636 | ||
1637 | /* tell the state machine we want it filled /NOW/ */ | |
1638 | zoran_cap(ztv, 1); | |
1639 | ||
1640 | /* wait till this buffer gets grabbed */ | |
1641 | wait_event_interruptible(ztv->vbiq, | |
1642 | (unused->status != FBUFFER_BUSY)); | |
1643 | /* see if a signal did it */ | |
1644 | if (signal_pending(current)) | |
1645 | return -EINTR; | |
1646 | done = unused; | |
1647 | } | |
1648 | else | |
1649 | write_unlock_irq(&ztv->lock); | |
1650 | ||
1651 | /* Yes! we got data! */ | |
1652 | max = done->bpl * -done->h; | |
1653 | if (count > max) | |
1654 | count = max; | |
1655 | ||
1656 | /* check if the user gave us enough room to write the data */ | |
1657 | if (!access_ok(VERIFY_WRITE, buf, count)) { | |
1658 | count = -EFAULT; | |
1659 | goto out; | |
1660 | } | |
1661 | ||
1662 | /* | |
1663 | * Now transform/strip the data from YUV to Y-only | |
1664 | * NB. Assume the Y is in the LSB of the YUV data. | |
1665 | */ | |
1666 | { | |
1667 | unsigned char* optr = buf; | |
1668 | unsigned char* eptr = buf+count; | |
1669 | ||
1670 | /* are we beeing accessed from an old driver? */ | |
1671 | if (count == 2*19*2048) { | |
1672 | /* | |
1673 | * Extreme HACK, old VBI programs expect 2048 points | |
1674 | * of data, and we only got 864 orso. Double each | |
1675 | * datapoint and clear the rest of the line. | |
1676 | * This way we have appear to have a | |
1677 | * sample_frequency of 29.5 Mc. | |
1678 | */ | |
1679 | int x,y; | |
1680 | unsigned char* iptr = done->memadr+1; | |
1681 | for (y=done->h; optr<eptr && y<0; y++) | |
1682 | { | |
1683 | /* copy to doubled data to userland */ | |
1684 | for (x=0; optr+1<eptr && x<-done->w; x++) | |
1685 | { | |
1686 | unsigned char a = iptr[x*2]; | |
1687 | __put_user(a, optr++); | |
1688 | __put_user(a, optr++); | |
1689 | } | |
1690 | /* and clear the rest of the line */ | |
1691 | for (x*=2; optr<eptr && x<done->bpl; x++) | |
1692 | __put_user(0, optr++); | |
1693 | /* next line */ | |
1694 | iptr += done->bpl; | |
1695 | } | |
1696 | } | |
1697 | else { | |
1698 | /* | |
1699 | * Other (probably newer) programs asked | |
1700 | * us what geometry we are using, and are | |
1701 | * reading the correct size. | |
1702 | */ | |
1703 | int x,y; | |
1704 | unsigned char* iptr = done->memadr+1; | |
1705 | for (y=done->h; optr<eptr && y<0; y++) | |
1706 | { | |
1707 | /* copy to doubled data to userland */ | |
1708 | for (x=0; optr<eptr && x<-done->w; x++) | |
1709 | __put_user(iptr[x*2], optr++); | |
1710 | /* and clear the rest of the line */ | |
1711 | for (;optr<eptr && x<done->bpl; x++) | |
1712 | __put_user(0, optr++); | |
1713 | /* next line */ | |
1714 | iptr += done->bpl; | |
1715 | } | |
1716 | } | |
1717 | ||
1718 | /* API compliance: | |
1719 | * place the framenumber (half fieldnr) in the last long | |
1720 | */ | |
1721 | __put_user(done->fieldnr/2, ((ulong*)eptr)[-1]); | |
1722 | } | |
1723 | ||
1724 | /* keep the engine running */ | |
1725 | done->status = FBUFFER_FREE; | |
1726 | zoran_cap(ztv, 1); | |
1727 | ||
1728 | /* tell listeners this buffer just became free */ | |
1729 | wake_up_interruptible(&ztv->vbiq); | |
1730 | ||
1731 | /* goodbye */ | |
1732 | out: | |
1733 | DEBUG(printk(CARD_DEBUG "vbi_read() returns %lu\n",CARD,count)); | |
1734 | return count; | |
1735 | } | |
1736 | ||
1737 | static | |
1738 | unsigned int vbi_poll(struct video_device *dev, struct file *file, poll_table *wait) | |
1739 | { | |
1740 | struct zoran *ztv = dev->priv; | |
1741 | struct vidinfo* item; | |
1742 | unsigned int mask = 0; | |
1743 | ||
1744 | poll_wait(file, &ztv->vbiq, wait); | |
1745 | ||
1746 | for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) | |
1747 | if (item->status == FBUFFER_DONE) | |
1748 | { | |
1749 | mask |= (POLLIN | POLLRDNORM); | |
1750 | break; | |
1751 | } | |
1752 | ||
1753 | DEBUG(printk(CARD_DEBUG "vbi_poll()=%x\n",CARD,mask)); | |
1754 | ||
1755 | return mask; | |
1756 | } | |
1757 | ||
1758 | static | |
1759 | int vbi_ioctl(struct video_device *dev, unsigned int cmd, void *arg) | |
1760 | { | |
1761 | struct zoran* ztv = dev->priv; | |
1762 | ||
1763 | switch (cmd) { | |
1764 | case VIDIOCGVBIFMT: | |
1765 | { | |
1766 | struct vbi_format f; | |
1767 | DEBUG(printk(CARD_DEBUG "VIDIOCGVBIINFO\n",CARD)); | |
1768 | f.sampling_rate = 14750000UL; | |
1769 | f.samples_per_line = -ztv->readinfo[0].w; | |
1770 | f.sample_format = VIDEO_PALETTE_RAW; | |
1771 | f.start[0] = f.start[1] = ztv->readinfo[0].y; | |
1772 | f.start[1] += 312; | |
1773 | f.count[0] = f.count[1] = -ztv->readinfo[0].h; | |
1774 | f.flags = VBI_INTERLACED; | |
1775 | if (copy_to_user(arg,&f,sizeof(f))) | |
1776 | return -EFAULT; | |
1777 | break; | |
1778 | } | |
1779 | case VIDIOCSVBIFMT: | |
1780 | { | |
1781 | struct vbi_format f; | |
1782 | int i; | |
1783 | if (copy_from_user(&f, arg,sizeof(f))) | |
1784 | return -EFAULT; | |
1785 | DEBUG(printk(CARD_DEBUG "VIDIOCSVBIINFO(%d,%d,%d,%d,%d,%d,%d,%x)\n",CARD,f.sampling_rate,f.samples_per_line,f.sample_format,f.start[0],f.start[1],f.count[0],f.count[1],f.flags)); | |
1786 | ||
1787 | /* lots of parameters are fixed... (PAL) */ | |
1788 | if (f.sampling_rate != 14750000UL || | |
1789 | f.samples_per_line > 864 || | |
1790 | f.sample_format != VIDEO_PALETTE_RAW || | |
1791 | f.start[0] < 0 || | |
1792 | f.start[0] != f.start[1]-312 || | |
1793 | f.count[0] != f.count[1] || | |
1794 | f.start[0]+f.count[0] >= 288 || | |
1795 | f.flags != VBI_INTERLACED) | |
1796 | return -EINVAL; | |
1797 | ||
1798 | write_lock_irq(&ztv->lock); | |
1799 | ztv->readinfo[0].y = f.start[0]; | |
1800 | ztv->readinfo[0].w = -f.samples_per_line; | |
1801 | ztv->readinfo[0].h = -f.count[0]; | |
1802 | ztv->readinfo[0].bpl = f.samples_per_line*ztv->readinfo[0].bpp; | |
1803 | for (i=1; i<ZORAN_VBI_BUFFERS; i++) | |
1804 | ztv->readinfo[i] = ztv->readinfo[i]; | |
1805 | write_unlock_irq(&ztv->lock); | |
1806 | break; | |
1807 | } | |
1808 | default: | |
1809 | return -ENOIOCTLCMD; | |
1810 | } | |
1811 | return 0; | |
1812 | } | |
1813 | ||
1814 | static struct video_device vbi_template= | |
1815 | { | |
1816 | .owner = THIS_MODULE, | |
1817 | .name = "UNSET", | |
1818 | .type = VID_TYPE_CAPTURE|VID_TYPE_TELETEXT, | |
1819 | .hardware = VID_HARDWARE_ZR36120, | |
1820 | .open = vbi_open, | |
1821 | .close = vbi_close, | |
1822 | .read = vbi_read, | |
1823 | .write = zoran_write, | |
1824 | .poll = vbi_poll, | |
1825 | .ioctl = vbi_ioctl, | |
1826 | .minor = -1, | |
1827 | }; | |
1828 | ||
1829 | /* | |
1830 | * Scan for a Zoran chip, request the irq and map the io memory | |
1831 | */ | |
1832 | static | |
1833 | int __init find_zoran(void) | |
1834 | { | |
1835 | int result; | |
1836 | struct zoran *ztv; | |
1837 | struct pci_dev *dev = NULL; | |
1838 | unsigned char revision; | |
1839 | int zoran_num=0; | |
1840 | ||
1841 | while ((dev = pci_find_device(PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120, dev))) | |
1842 | { | |
1843 | /* Ok, a ZR36120/ZR36125 found! */ | |
1844 | ztv = &zorans[zoran_num]; | |
1845 | ztv->dev = dev; | |
1846 | ||
1847 | if (pci_enable_device(dev)) | |
1848 | return -EIO; | |
1849 | ||
1850 | pci_read_config_byte(dev, PCI_CLASS_REVISION, &revision); | |
1851 | printk(KERN_INFO "zoran: Zoran %x (rev %d) ", | |
1852 | dev->device, revision); | |
1853 | printk("bus: %d, devfn: %d, irq: %d, ", | |
1854 | dev->bus->number, dev->devfn, dev->irq); | |
1855 | printk("memory: 0x%08lx.\n", ztv->zoran_adr); | |
1856 | ||
1857 | ztv->zoran_mem = ioremap(ztv->zoran_adr, 0x1000); | |
1858 | DEBUG(printk(KERN_DEBUG "zoran: mapped-memory at 0x%p\n",ztv->zoran_mem)); | |
1859 | ||
1860 | result = request_irq(dev->irq, zoran_irq, | |
1861 | SA_SHIRQ|SA_INTERRUPT,"zoran", ztv); | |
1862 | if (result==-EINVAL) | |
1863 | { | |
1864 | iounmap(ztv->zoran_mem); | |
1865 | printk(KERN_ERR "zoran: Bad irq number or handler\n"); | |
1866 | return -EINVAL; | |
1867 | } | |
1868 | if (result==-EBUSY) | |
1869 | printk(KERN_ERR "zoran: IRQ %d busy, change your PnP config in BIOS\n",dev->irq); | |
1870 | if (result < 0) { | |
1871 | iounmap(ztv->zoran_mem); | |
1872 | return result; | |
1873 | } | |
1874 | /* Enable bus-mastering */ | |
1875 | pci_set_master(dev); | |
1876 | ||
1877 | zoran_num++; | |
1878 | } | |
1879 | if(zoran_num) | |
1880 | printk(KERN_INFO "zoran: %d Zoran card(s) found.\n",zoran_num); | |
1881 | return zoran_num; | |
1882 | } | |
1883 | ||
1884 | static | |
1885 | int __init init_zoran(int card) | |
1886 | { | |
1887 | struct zoran *ztv = &zorans[card]; | |
1888 | int i; | |
1889 | ||
1890 | /* if the given cardtype valid? */ | |
1891 | if (cardtype[card]>=NRTVCARDS) { | |
1892 | printk(KERN_INFO "invalid cardtype(%d) detected\n",cardtype[card]); | |
1893 | return -1; | |
1894 | } | |
1895 | ||
1896 | /* reset the zoran */ | |
1897 | zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI); | |
1898 | udelay(10); | |
1899 | zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI); | |
1900 | udelay(10); | |
1901 | ||
1902 | /* zoran chip specific details */ | |
1903 | ztv->card = tvcards+cardtype[card]; /* point to the selected card */ | |
1904 | ztv->norm = 0; /* PAL */ | |
1905 | ztv->tuner_freq = 0; | |
1906 | ||
1907 | /* videocard details */ | |
1908 | ztv->swidth = 800; | |
1909 | ztv->sheight = 600; | |
1910 | ztv->depth = 16; | |
1911 | ||
1912 | /* State details */ | |
1913 | ztv->fbuffer = 0; | |
1914 | ztv->overinfo.kindof = FBUFFER_OVERLAY; | |
1915 | ztv->overinfo.status = FBUFFER_FREE; | |
1916 | ztv->overinfo.x = 0; | |
1917 | ztv->overinfo.y = 0; | |
1918 | ztv->overinfo.w = 768; /* 640 */ | |
1919 | ztv->overinfo.h = 576; /* 480 */ | |
1920 | ztv->overinfo.format = VIDEO_PALETTE_RGB565; | |
1921 | ztv->overinfo.bpp = palette2fmt[ztv->overinfo.format].bpp; | |
1922 | ztv->overinfo.bpl = ztv->overinfo.bpp*ztv->swidth; | |
1923 | ztv->overinfo.busadr = 0; | |
1924 | ztv->overinfo.memadr = 0; | |
1925 | ztv->overinfo.overlay = 0; | |
1926 | for (i=0; i<ZORAN_MAX_FBUFFERS; i++) { | |
1927 | ztv->grabinfo[i] = ztv->overinfo; | |
1928 | ztv->grabinfo[i].kindof = FBUFFER_GRAB; | |
1929 | } | |
1930 | init_waitqueue_head(&ztv->grabq); | |
1931 | ||
1932 | /* VBI details */ | |
1933 | ztv->readinfo[0] = ztv->overinfo; | |
1934 | ztv->readinfo[0].kindof = FBUFFER_VBI; | |
1935 | ztv->readinfo[0].w = -864; | |
1936 | ztv->readinfo[0].h = -38; | |
1937 | ztv->readinfo[0].format = VIDEO_PALETTE_YUV422; | |
1938 | ztv->readinfo[0].bpp = palette2fmt[ztv->readinfo[0].format].bpp; | |
1939 | ztv->readinfo[0].bpl = 1024*ztv->readinfo[0].bpp; | |
1940 | for (i=1; i<ZORAN_VBI_BUFFERS; i++) | |
1941 | ztv->readinfo[i] = ztv->readinfo[0]; | |
1942 | init_waitqueue_head(&ztv->vbiq); | |
1943 | ||
1944 | /* maintenance data */ | |
1945 | ztv->have_decoder = 0; | |
1946 | ztv->have_tuner = 0; | |
1947 | ztv->tuner_type = 0; | |
1948 | ztv->running = 0; | |
1949 | ztv->users = 0; | |
1950 | rwlock_init(&ztv->lock); | |
1951 | ztv->workqueue = 0; | |
1952 | ztv->fieldnr = 0; | |
1953 | ztv->lastfieldnr = 0; | |
1954 | ||
1955 | if (triton1) | |
1956 | zrand(~ZORAN_VDC_TRICOM, ZORAN_VDC); | |
1957 | ||
1958 | /* external FL determines TOP frame */ | |
1959 | zror(ZORAN_VFEC_EXTFL, ZORAN_VFEC); | |
1960 | ||
1961 | /* set HSpol */ | |
1962 | if (ztv->card->hsync_pos) | |
1963 | zrwrite(ZORAN_VFEH_HSPOL, ZORAN_VFEH); | |
1964 | /* set VSpol */ | |
1965 | if (ztv->card->vsync_pos) | |
1966 | zrwrite(ZORAN_VFEV_VSPOL, ZORAN_VFEV); | |
1967 | ||
1968 | /* Set the proper General Purpuse register bits */ | |
1969 | /* implicit: no softreset, 0 waitstates */ | |
1970 | zrwrite(ZORAN_PCI_SOFTRESET|(ztv->card->gpdir<<0),ZORAN_PCI); | |
1971 | /* implicit: 3 duration and recovery PCI clocks on guest 0-3 */ | |
1972 | zrwrite(ztv->card->gpval<<24,ZORAN_GUEST); | |
1973 | ||
1974 | /* clear interrupt status */ | |
1975 | zrwrite(~0, ZORAN_ISR); | |
1976 | ||
1977 | /* | |
1978 | * i2c template | |
1979 | */ | |
1980 | ztv->i2c = zoran_i2c_bus_template; | |
1981 | sprintf(ztv->i2c.name,"zoran-%d",card); | |
1982 | ztv->i2c.data = ztv; | |
1983 | ||
1984 | /* | |
1985 | * Now add the template and register the device unit | |
1986 | */ | |
1987 | ztv->video_dev = zr36120_template; | |
1988 | strcpy(ztv->video_dev.name, ztv->i2c.name); | |
1989 | ztv->video_dev.priv = ztv; | |
1990 | if (video_register_device(&ztv->video_dev, VFL_TYPE_GRABBER, video_nr) < 0) | |
1991 | return -1; | |
1992 | ||
1993 | ztv->vbi_dev = vbi_template; | |
1994 | strcpy(ztv->vbi_dev.name, ztv->i2c.name); | |
1995 | ztv->vbi_dev.priv = ztv; | |
1996 | if (video_register_device(&ztv->vbi_dev, VFL_TYPE_VBI, vbi_nr) < 0) { | |
1997 | video_unregister_device(&ztv->video_dev); | |
1998 | return -1; | |
1999 | } | |
2000 | i2c_register_bus(&ztv->i2c); | |
2001 | ||
2002 | /* set interrupt mask - the PIN enable will be set later */ | |
2003 | zrwrite(ZORAN_ICR_GIRQ0|ZORAN_ICR_GIRQ1|ZORAN_ICR_CODE, ZORAN_ICR); | |
2004 | ||
2005 | printk(KERN_INFO "%s: installed %s\n",ztv->i2c.name,ztv->card->name); | |
2006 | return 0; | |
2007 | } | |
2008 | ||
2009 | static | |
2010 | void release_zoran(int max) | |
2011 | { | |
2012 | struct zoran *ztv; | |
2013 | int i; | |
2014 | ||
2015 | for (i=0;i<max; i++) | |
2016 | { | |
2017 | ztv = &zorans[i]; | |
2018 | ||
2019 | /* turn off all capturing, DMA and IRQs */ | |
2020 | /* reset the zoran */ | |
2021 | zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI); | |
2022 | udelay(10); | |
2023 | zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI); | |
2024 | udelay(10); | |
2025 | ||
2026 | /* first disable interrupts before unmapping the memory! */ | |
2027 | zrwrite(0, ZORAN_ICR); | |
2028 | zrwrite(0xffffffffUL,ZORAN_ISR); | |
2029 | ||
2030 | /* free it */ | |
2031 | free_irq(ztv->dev->irq,ztv); | |
2032 | ||
2033 | /* unregister i2c_bus */ | |
2034 | i2c_unregister_bus((&ztv->i2c)); | |
2035 | ||
2036 | /* unmap and free memory */ | |
2037 | if (ztv->zoran_mem) | |
2038 | iounmap(ztv->zoran_mem); | |
2039 | ||
2040 | video_unregister_device(&ztv->video_dev); | |
2041 | video_unregister_device(&ztv->vbi_dev); | |
2042 | } | |
2043 | } | |
2044 | ||
2045 | void __exit zr36120_exit(void) | |
2046 | { | |
2047 | release_zoran(zoran_cards); | |
2048 | } | |
2049 | ||
2050 | int __init zr36120_init(void) | |
2051 | { | |
2052 | int card; | |
2053 | ||
2054 | handle_chipset(); | |
2055 | zoran_cards = find_zoran(); | |
2056 | if (zoran_cards<0) | |
2057 | /* no cards found, no need for a driver */ | |
2058 | return -EIO; | |
2059 | ||
2060 | /* initialize Zorans */ | |
2061 | for (card=0; card<zoran_cards; card++) { | |
2062 | if (init_zoran(card)<0) { | |
2063 | /* only release the zorans we have registered */ | |
2064 | release_zoran(card); | |
2065 | return -EIO; | |
2066 | } | |
2067 | } | |
2068 | return 0; | |
2069 | } | |
2070 | ||
2071 | module_init(zr36120_init); | |
2072 | module_exit(zr36120_exit); |